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Cited by 309

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Topotactic Transformation of Metal–Organic Frameworks to Graphene-Encapsulated Transition-Metal Nitrides as Efficient Fenton-like Catalysts

Open access
Li, Xuning, Ao, Zhimin, Liu, Jiayi, Sun, Hongqi, Rykov, Alexandre I., Wang, Junhu·2016·ACS Nano

Abstract

Innovation in transition-metal nitride (TMN) preparation is highly desired for realization of various functionalities. Herein, series of graphene-encapsulated TMNs (Fe x Mn 6– x Co 4 –N@C) with well-controlled morphology have been synthesized through topotactic transformation of metal–organic frameworks in an N 2 atmosphere. The as-synthesized Fe x Mn 6– x Co 4 –N@C nanodices were systematically characterized and functionalized as Fenton-like catalysts for catalytic bisphenol A (BPA) oxidation by activation of peroxymonosulfate (PMS). The catalytic performance of Fe x Mn 6– x Co 4 –N@C was found to be largely enhanced with increasing Mn content. Theoretical calculations illustrated that the dramatically reduced adsorption energy and facilitated electron transfer for PMS activation catalyzed by Mn 4 N are the main factors for the excellent activity. Both sulfate and hydroxyl radicals were identified during the PMS activation, and the BPA degradation pathway mainly through hydroxylation, oxidation, and decarboxylation was investigated. Based on the systematic characterization of the catalyst before and after the reaction, the overall PMS activation mechanism over Fe x Mn 6– x Co 4 –N@C was proposed. This study details the insights into versatile TMNs for sustainable remediation by activation of PMS.

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Metadata

Authors
Li, X., Ao, Z., Liu, J., Sun, H., Rykov, A. I., & Wang, J.
Venue
ACS Nano
Published
2016-12-13
Volume
10
Issue
12
Pages
11532-11540
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W2560463761
Cited by
309
References
1
FWCI
15.43
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Topotactic Transformation of Metal–Organic Frameworks to Graphene-Encapsulated Transition-Metal Nitrides as Efficient Fenton-like Catalysts. https://app.cochat.ai/papers/10.1021/acsnano.6b07522
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Li, X., Ao, Z., Liu, J., Sun, H., Rykov, A. I., & Wang, J. (2016). Topotactic Transformation of Metal–Organic Frameworks to Graphene-Encapsulated Transition-Metal Nitrides as Efficient Fenton-like Catalysts. ACS Nano. https://doi.org/10.1021/acsnano.6b07522

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